Angled Coilover - Photo 10

When coilovers are mounted at an angle, the effective spring rate is reduced by the angle correction factor (ACF) based on the angle from vertical. The effective rate then becomes the spring rate times the cosine of that angle. In all cases, we’re speaking simply of near static suspension behavior. As an axle articulates, effective spring rate may change significantly upward (rising rate) or downward (falling rate).